Navien Gas Tankless Water Heater Reviews: Model NPE240S-NG

Navien NPE240S-NG

Having to buy a new water heater can be an arduous task. You don’t want to pick the wrong one and live through a headache every time you get your electricity bill. Or, even worse, have to bathe with cold water every now and then.

So, is this water heater perfect for you? Check out our Navien gas tankless water heater reviews to find out. Here is a quick recap on what we think of this water heater.

Also, if you intend to use it in a huge building, you can easily cascade up to 16 heaters. And they have also done wonders with the load-sharing technology.

As soon as one heater reaches 4/5 of its capacity, the next one will turn on to share the load. This ensures that your costs stay down.

3. Water flow

This wall-hanging unit can provide over 11 gallons per minute of water flow. This ensures that there is enough hot water for any a home.

In fact, we have been unable to strain the flow of this machine with 3 showers running at the same time.

Next to that, we turned two taps on. And, even in spite of all of that, we still had enough hot water to wash the dishes by hand.

This is in part thanks to the amount of BTUs this unit can put out. You can check this article out if you want to see more choices on tankless gas water heater.

So, this water heater can easily satisfy hot water needs of an average household with 3 bathrooms.

What we loved about it next to the incredible amount of hot water? Well, it functions wonderfully silently, unlike some other models we tested.

4. Safety

We were very happy to notice all of the safety features we could want a heater unit to have. The flame sensor is there to make sure that there is no gas going if there is no fire.

It also has an operation detector for the ignition, the high limit switch for water temperature, the high limit sensor for exhaust heat, APS, and the power surge fuse.

So, you are pretty much covered when it comes to the safety of this product. Just make sure to have a professional install it. It is not something you should consider a DIY project.

5. Controls

If you want a heater that is easy to use, you are looking at the right one with Navien N240S NG.

The touchscreen control center on the front panel makes it appear high-tech but remains user-friendly.

Everything is pretty clear, and if something seems confusing, their user manual will clear it up.

However, we have to praise Navien for their mobile app. Yes, you can actually download an app that will let you use your Wi-Fi connection to control the temperature remotely.

And not only that, but you will be able to check the usage data and receive various diagnostic information whether you’re at work, or on the couch.

You’ll know if something’s wrong in a second. To us, this is a huge advantage over similar models.

6. Venting

The system in charge of venting is a forced draft direct vent with 2-inch PVC pipes. Navien is all about performance. And, that is why they are using PVC vent pipes.

PVC allows for better condensing and will thus further reduce the energy expenditure. And you can use common venting for up to 8 units.

This makes this residential unit ideal for large companies as well. However, if you do not like all these pipes and vents, check out our reviews on the electric tankless water heater.

7. Maintenance

When it comes to maintenance, this Navien model isn’t a demanding device, even though it is high-tech. NPE240S-NG requires yearly descaling and filter cleaning.

If your water supply is problematic, you might need to flush the system with vinegar more than once per year, but it’s a fast and simple process, so it won’t be much of a bother.

PROS

Incredibly energy efficient unit that will save you money in the long run.

A warranty that lasts for 15 years.

Wi-Fi controls via their mobile phone app.

CONS

It takes a minute for the hot water to start flowing.

Doesn’t come with the venting kit.

Final Verdict

Navien NPE240S-NG Review

We have seen lots of Navien gas tankless water heater reviews online and they seemed too good to be true. So we had to review it ourselves and it does check out. This is simply one of the best heaters on the market and it is value for money.

It doesn’t take up a lot of space, it saves energy and it can provide enough water for a huge home. And we simply love the remote control app they have. Having the ability to adjust the temperature or run diagnostics from your couch is really a great feature.

We definitely recommend this product and based on our review, we give it a 4.5 out of 5 stars.

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